X=int(input())
if 400<=X<=599:
  print("8")
elif 600<=X<=799:
  print("7")
elif 800<=X<=999:
  print("6")
elif 1000<=X<=1199:
  print("5")
elif 1200<=X<=1399:
  print("4")
elif 1400<=X<=1599:
  print("3")
elif 1600<=X<=1799:
  print("2")
else:
  print("1") X=int(input()) X int(input()) int input() input if 400<=X<=599:
  print("8")
elif 600<=X<=799:
  print("7")
elif 800<=X<=999:
  print("6")
elif 1000<=X<=1199:
  print("5")
elif 1200<=X<=1399:
  print("4")
elif 1400<=X<=1599:
  print("3")
elif 1600<=X<=1799:
  print("2")
else:
  print("1") 400<=X<=599 400<=X 400 X 599 print("8") print "8" elif 600<=X<=799:
  print("7") 600<=X<=799 600<=X 600 X 799 print("7") print "7" elif 800<=X<=999:
  print("6") 800<=X<=999 800<=X 800 X 999 print("6") print "6" elif 1000<=X<=1199:
  print("5") 1000<=X<=1199 1000<=X 1000 X 1199 print("5") print "5" elif 1200<=X<=1399:
  print("4") 1200<=X<=1399 1200<=X 1200 X 1399 print("4") print "4" elif 1400<=X<=1599:
  print("3") 1400<=X<=1599 1400<=X 1400 X 1599 print("3") print "3" elif 1600<=X<=1799:
  print("2") 1600<=X<=1799 1600<=X 1600 X 1799 print("2") print "2" print("1") print "1" X=int(input()) int(input()) X
X=int(input())
if 400<=X<=599:
  print("8")
elif 600<=X<=799:
  print("7")
elif 800<=X<=999:
  print("6")
elif 1000<=X<=1199:
  print("5")
elif 1200<=X<=1399:
  print("4")
elif 1400<=X<=1599:
  print("3")
elif 1600<=X<=1799:
  print("2")
else:
  print("1")
